221020111201022 has 64 divisors (see below), whose sum is σ = 384889780214784. Its totient is φ = 93225916016640.

The previous prime is 221020111201013. The next prime is 221020111201049. The reversal of 221020111201022 is 220102111020122.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7426486622 + ... + 7426516382.

It is an arithmetic number, because the mean of its divisors is an integer number (6013902815856).

Almost surely, 2^{221020111201022} is an apocalyptic number.

221020111201022 is a deficient number, since it is larger than the sum of its proper divisors (163869669013762).

221020111201022 is a wasteful number, since it uses less digits than its factorization.

221020111201022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36633.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 221020111201022 its reverse (220102111020122), we get a palindrome (441122222221144).

The spelling of 221020111201022 in words is "two hundred twenty-one trillion, twenty billion, one hundred eleven million, two hundred one thousand, twenty-two".