10221212121010 has 64 divisors (see below), whose sum is σ = 20763842133888. Its totient is φ = 3590248000000.

The previous prime is 10221212120971. The next prime is 10221212121031. The reversal of 10221212121010 is 1012121212201.

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, 10764016 + ... + 11675035.

It is an arithmetic number, because the mean of its divisors is an integer number (324435033342).

Almost surely, 2^{10221212121010} is an apocalyptic number.

10221212121010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

10221212121010 is an abundant number, since it is smaller than the sum of its proper divisors (10542630012878).

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

10221212121010 is a wasteful number, since it uses less digits than its factorization.

10221212121010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22439211.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 10221212121010 its reverse (1012121212201), we get a palindrome (11233333333211).

The spelling of 10221212121010 in words is "ten trillion, two hundred twenty-one billion, two hundred twelve million, one hundred twenty-one thousand, ten".