201220011020122 has 16 divisors (see below), whose sum is σ = 306948099895200. Its totient is φ = 98904003503760.

The previous prime is 201220011020081. The next prime is 201220011020131. The reversal of 201220011020122 is 221020110022102.

It is a happy number.

It is a super-3 number, since 3×201220011020122³ (a number of 44 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 201220011020096 and 201220011020105.

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, 9394297 + ... + 22151587.

It is an arithmetic number, because the mean of its divisors is an integer number (19184256243450).

Almost surely, 2^{201220011020122} is an apocalyptic number.

201220011020122 is a deficient number, since it is larger than the sum of its proper divisors (105728088875078).

201220011020122 is a wasteful number, since it uses less digits than its factorization.

201220011020122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12891021.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 201220011020122 its reverse (221020110022102), we get a palindrome (422240121042224).

The spelling of 201220011020122 in words is "two hundred one trillion, two hundred twenty billion, eleven million, twenty thousand, one hundred twenty-two".