1210211122010 has 144 divisors (see below), whose sum is σ = 2650311148968. Its totient is φ = 396178083840.

The previous prime is 1210211121983. The next prime is 1210211122073. The reversal of 1210211122010 is 102211120121.

It can be written as a sum of positive squares in 4 ways, for example, as 1178577298129 + 31633823881 = 1085623^2 + 177859^2 .

It is a super-2 number, since 2×1210211122010² (a number of 25 digits) contains 22 as substring.

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, 10825922 + ... + 10937138.

Almost surely, 2^{1210211122010} is an apocalyptic number.

1210211122010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1210211122010 is an abundant number, since it is smaller than the sum of its proper divisors (1440100026958).

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

1210211122010 is a wasteful number, since it uses less digits than its factorization.

1210211122010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111309 (or 111275 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 1210211122010 its reverse (102211120121), we get a palindrome (1312422242131).

The spelling of 1210211122010 in words is "one trillion, two hundred ten billion, two hundred eleven million, one hundred twenty-two thousand, ten".