1211020120022 has 16 divisors (see below), whose sum is σ = 1875209183232. Its totient is φ = 585952085160.

The previous prime is 1211020120021. The next prime is 1211020120027. The reversal of 1211020120022 is 2200210201121.

It is a junction number, because it is equal to n+sod(n) for n = 1211020119979 and 1211020120006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1211020120021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1060733 + ... + 1883399.

It is an arithmetic number, because the mean of its divisors is an integer number (117200573952).

Almost surely, 2^{1211020120022} is an apocalyptic number.

1211020120022 is a deficient number, since it is larger than the sum of its proper divisors (664189063210).

1211020120022 is a wasteful number, since it uses less digits than its factorization.

1211020120022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 846443.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 1211020120022 its reverse (2200210201121), we get a palindrome (3411230321143).

The spelling of 1211020120022 in words is "one trillion, two hundred eleven billion, twenty million, one hundred twenty thousand, twenty-two".