1021211122210 has 16 divisors (see below), whose sum is σ = 1856379823992. Its totient is φ = 404440048000.

The previous prime is 1021211122207. The next prime is 1021211122231. The reversal of 1021211122210 is 122211121201.

1021211122210 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 970104833721 + 51106288489 = 984939^2 + 226067^2 .

It is a super-2 number, since 2×1021211122210² (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 7 ways as a sum of consecutive naturals, for example, 505549051 + ... + 505551070.

Almost surely, 2^{1021211122210} is an apocalyptic number.

1021211122210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1021211122210 is a deficient number, since it is larger than the sum of its proper divisors (835168701782).

1021211122210 is a wasteful number, since it uses less digits than its factorization.

1021211122210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1011100229.

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

Adding to 1021211122210 its reverse (122211121201), we get a palindrome (1143422243411).

The spelling of 1021211122210 in words is "one trillion, twenty-one billion, two hundred eleven million, one hundred twenty-two thousand, two hundred ten".