1022212121010 has 64 divisors (see below), whose sum is σ = 2465960740992. Its totient is φ = 271187398656.

The previous prime is 1022212120987. The next prime is 1022212121057. The reversal of 1022212121010 is 101212122201.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4971057 + ... + 5172603.

It is an arithmetic number, because the mean of its divisors is an integer number (38530636578).

Almost surely, 2^{1022212121010} is an apocalyptic number.

1022212121010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1022212121010 is an abundant number, since it is smaller than the sum of its proper divisors (1443748619982).

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

1022212121010 is a wasteful number, since it uses less digits than its factorization.

1022212121010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 202427.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 1022212121010 its reverse (101212122201), we get a palindrome (1123424243211).

The spelling of 1022212121010 in words is "one trillion, twenty-two billion, two hundred twelve million, one hundred twenty-one thousand, ten".