1021120222210 has 64 divisors (see below), whose sum is σ = 2131538716800. Its totient is φ = 348290496000.

The previous prime is 1021120222189. The next prime is 1021120222247. The reversal of 1021120222210 is 122220211201.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2207595 + ... + 2629774.

It is an arithmetic number, because the mean of its divisors is an integer number (33305292450).

Almost surely, 2^{1021120222210} is an apocalyptic number.

1021120222210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1021120222210 is an abundant number, since it is smaller than the sum of its proper divisors (1110418494590).

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

1021120222210 is a wasteful number, since it uses less digits than its factorization.

1021120222210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4837507.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 1021120222210 its reverse (122220211201), we get a palindrome (1143340433411).

The spelling of 1021120222210 in words is "one trillion, twenty-one billion, one hundred twenty million, two hundred twenty-two thousand, two hundred ten".