121021222 has 16 divisors (see below), whose sum is σ = 218384640. Its totient is φ = 49136328.

The previous prime is 121021211. The next prime is 121021231. The reversal of 121021222 is 222120121.

It is a happy number.

It is a super-2 number, since 2×121021222² = 29292272348746568, which 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 7 ways as a sum of consecutive naturals, for example, 227218 + ... + 227749.

It is an arithmetic number, because the mean of its divisors is an integer number (13649040).

Almost surely, 2^121021222 is an apocalyptic number.

121021222 is a deficient number, since it is larger than the sum of its proper divisors (97363418).

121021222 is a wasteful number, since it uses less digits than its factorization.

121021222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 454995.

The product of its (nonzero) digits is 32, while the sum is 13.

The square root of 121021222 is about 11000.9645940708. The cubic root of 121021222 is about 494.6376588515.

Adding to 121021222 its reverse (222120121), we get a palindrome (343141343).

The spelling of 121021222 in words is "one hundred twenty-one million, twenty-one thousand, two hundred twenty-two".