1211210110022 has 64 divisors (see below), whose sum is σ = 2013625785600. Its totient is φ = 541839300480.

The previous prime is 1211210110021. The next prime is 1211210110043. The reversal of 1211210110022 is 2200110121121.

It is a junction number, because it is equal to n+sod(n) for n = 1211210109979 and 1211210110006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1211210110021) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 256446953 + ... + 256451675.

It is an arithmetic number, because the mean of its divisors is an integer number (31462902900).

Almost surely, 2^{1211210110022} is an apocalyptic number.

1211210110022 is a deficient number, since it is larger than the sum of its proper divisors (802415675578).

1211210110022 is a wasteful number, since it uses less digits than its factorization.

1211210110022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5541.

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

Adding to 1211210110022 its reverse (2200110121121), we get a palindrome (3411320231143).

The spelling of 1211210110022 in words is "one trillion, two hundred eleven billion, two hundred ten million, one hundred ten thousand, twenty-two".