121022156 has 6 divisors (see below), whose sum is σ = 211788780. Its totient is φ = 60511076.

The previous prime is 121022141. The next prime is 121022173. The reversal of 121022156 is 651220121.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15127766 + ... + 15127773.

It is an arithmetic number, because the mean of its divisors is an integer number (35298130).

Almost surely, 2^121022156 is an apocalyptic number.

It is an amenable number.

121022156 is a deficient number, since it is larger than the sum of its proper divisors (90766624).

121022156 is a wasteful number, since it uses less digits than its factorization.

121022156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30255543 (or 30255541 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 20.

The square root of 121022156 is about 11001.0070448119. The cubic root of 121022156 is about 494.6389313291.

Adding to 121022156 its reverse (651220121), we get a palindrome (772242277).

The spelling of 121022156 in words is "one hundred twenty-one million, twenty-two thousand, one hundred fifty-six".