121022010 has 48 divisors (see below), whose sum is σ = 315212040. Its totient is φ = 32215680.

The previous prime is 121022009. The next prime is 121022023. The reversal of 121022010 is 10220121.

It can be written as a sum of positive squares in 4 ways, for example, as 75012921 + 46009089 = 8661^2 + 6783^2 .

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 121021983 and 121022001.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 83976 + ... + 85404.

Almost surely, 2^121022010 is an apocalyptic number.

121022010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121022010 is an abundant number, since it is smaller than the sum of its proper divisors (194190030).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

121022010 is a wasteful number, since it uses less digits than its factorization.

121022010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2383 (or 2380 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

The square root of 121022010 is about 11001.0004090537. Note that the first 3 decimals coincide. The cubic root of 121022010 is about 494.6387324198.

Adding to 121022010 its reverse (10220121), we get a palindrome (131242131).

It can be divided in two parts, 1210 and 22010, that added together give a triangular number (23220 = T₂₁₅).

The spelling of 121022010 in words is "one hundred twenty-one million, twenty-two thousand, ten".