1211210120022 has 48 divisors (see below), whose sum is σ = 2818024067952. Its totient is φ = 346046937600.

The previous prime is 1211210119991. The next prime is 1211210120047. The reversal of 1211210120022 is 2200210121121.

It is a junction number, because it is equal to n+sod(n) for n = 1211210119983 and 1211210120010.

It is a congruent number.

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, 9850522 + ... + 9972722.

It is an arithmetic number, because the mean of its divisors is an integer number (58708834749).

Almost surely, 2^{1211210120022} is an apocalyptic number.

1211210120022 is an abundant number, since it is smaller than the sum of its proper divisors (1606813947930).

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

1211210120022 is a wasteful number, since it uses less digits than its factorization.

1211210120022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155933 (or 155926 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 1211210120022 its reverse (2200210121121), we get a palindrome (3411420241143).

The spelling of 1211210120022 in words is "one trillion, two hundred eleven billion, two hundred ten million, one hundred twenty thousand, twenty-two".