10111221011210 has 48 divisors (see below), whose sum is σ = 20695009847400. Its totient is φ = 3550021157760.

The previous prime is 10111221011207. The next prime is 10111221011261. The reversal of 10111221011210 is 1211012211101.

It can be written as a sum of positive squares in 4 ways, for example, as 9118908181009 + 992312830201 = 3019753^2 + 996149^2 .

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, 144040445 + ... + 144110624.

Almost surely, 2^{10111221011210} is an apocalyptic number.

10111221011210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

10111221011210 is an abundant number, since it is smaller than the sum of its proper divisors (10583788836190).

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

10111221011210 is a wasteful number, since it uses less digits than its factorization.

10111221011210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 288151127 (or 288151116 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 10111221011210 its reverse (1211012211101), we get a palindrome (11322233222311).

The spelling of 10111221011210 in words is "ten trillion, one hundred eleven billion, two hundred twenty-one million, eleven thousand, two hundred ten".