101221211110 has 16 divisors (see below), whose sum is σ = 188480876400. Its totient is φ = 39092329696.

The previous prime is 101221211101. The next prime is 101221211159. The reversal of 101221211110 is 11112122101.

It is a happy number.

101221211110 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 174519040 + ... + 174519619.

It is an arithmetic number, because the mean of its divisors is an integer number (11780054775).

Almost surely, 2^101221211110 is an apocalyptic number.

101221211110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

101221211110 is a deficient number, since it is larger than the sum of its proper divisors (87259665290).

101221211110 is a wasteful number, since it uses less digits than its factorization.

101221211110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 349038695.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 101221211110 its reverse (11112122101), we get a palindrome (112333333211).

The spelling of 101221211110 in words is "one hundred one billion, two hundred twenty-one million, two hundred eleven thousand, one hundred ten".