122220121022010 has 144 divisors (see below), whose sum is σ = 351238253577120. Its totient is φ = 29463593966400.

The previous prime is 122220121022003. The next prime is 122220121022029. The reversal of 122220121022010 is 10220121022221.

It is a happy number.

122220121022010 is a `hidden beast` number, since 1 + 2 + 2 + 220 + 1 + 210 + 220 + 10 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 29400276 + ... + 33298895.

It is an arithmetic number, because the mean of its divisors is an integer number (2439154538730).

Almost surely, 2^{122220121022010} is an apocalyptic number.

122220121022010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

122220121022010 is an abundant number, since it is smaller than the sum of its proper divisors (229018132555110).

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

122220121022010 is a wasteful number, since it uses less digits than its factorization.

122220121022010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62699385 (or 62699371 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 122220121022010 its reverse (10220121022221), we get a palindrome (132440242044231).

The spelling of 122220121022010 in words is "one hundred twenty-two trillion, two hundred twenty billion, one hundred twenty-one million, twenty-two thousand, ten".