12220022101021 has 16 divisors (see below), whose sum is σ = 14447999433600. Its totient is φ = 10112643874368.

The previous prime is 12220022101003. The next prime is 12220022101121. The reversal of 12220022101021 is 12010122002221.

It is a happy number.

It is not a de Polignac number, because 12220022101021 - 2³¹ = 12217874617373 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12220022100986 and 12220022101004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12220022101121) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2917015 + ... + 5740123.

It is an arithmetic number, because the mean of its divisors is an integer number (902999964600).

Almost surely, 2^{12220022101021} is an apocalyptic number.

It is an amenable number.

12220022101021 is a deficient number, since it is larger than the sum of its proper divisors (2227977332579).

12220022101021 is a wasteful number, since it uses less digits than its factorization.

12220022101021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2844468.

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

Adding to 12220022101021 its reverse (12010122002221), we get a palindrome (24230144103242).

The spelling of 12220022101021 in words is "twelve trillion, two hundred twenty billion, twenty-two million, one hundred one thousand, twenty-one".