1001201221102 has 32 divisors (see below), whose sum is σ = 1626668930880. Its totient is φ = 460745725440.

The previous prime is 1001201221051. The next prime is 1001201221121. The reversal of 1001201221102 is 2011221021001.

It is a super-2 number, since 2×1001201221102² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 889899 + ... + 1671622.

It is an arithmetic number, because the mean of its divisors is an integer number (50833404090).

Almost surely, 2^{1001201221102} is an apocalyptic number.

1001201221102 is a deficient number, since it is larger than the sum of its proper divisors (625467709778).

1001201221102 is a wasteful number, since it uses less digits than its factorization.

1001201221102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2561868.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 1001201221102 its reverse (2011221021001), we get a palindrome (3012422242103).

The spelling of 1001201221102 in words is "one trillion, one billion, two hundred one million, two hundred twenty-one thousand, one hundred two".