1220122011021 has 8 divisors (see below), whose sum is σ = 1637747666400. Its totient is φ = 807955514832.

The previous prime is 1220122010977. The next prime is 1220122011049. The reversal of 1220122011021 is 1201102210221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1220122011021 - 2³⁷ = 1082683057549 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1220122011071) 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, 1364789275 + ... + 1364790168.

It is an arithmetic number, because the mean of its divisors is an integer number (204718458300).

Almost surely, 2^{1220122011021} is an apocalyptic number.

It is an amenable number.

1220122011021 is a deficient number, since it is larger than the sum of its proper divisors (417625655379).

1220122011021 is a wasteful number, since it uses less digits than its factorization.

1220122011021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2729579595.

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

Adding to 1220122011021 its reverse (1201102210221), we get a palindrome (2421224221242).

The spelling of 1220122011021 in words is "one trillion, two hundred twenty billion, one hundred twenty-two million, eleven thousand, twenty-one".