2220121001104 has 40 divisors (see below), whose sum is σ = 4488633369792. Its totient is φ = 1061766752640.

The previous prime is 2220121001101. The next prime is 2220121001107. The reversal of 2220121001104 is 4011001210222.

It is an interprime number because it is at equal distance from previous prime (2220121001101) and next prime (2220121001107).

It is a Harshad number since it is a multiple of its sum of digits (16).

It is not an unprimeable number, because it can be changed into a prime (2220121001101) 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, 18033582 + ... + 18156274.

Almost surely, 2^{2220121001104} is an apocalyptic number.

It is an amenable number.

2220121001104 is an abundant number, since it is smaller than the sum of its proper divisors (2268512368688).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2220121001104 is a wasteful number, since it uses less digits than its factorization.

2220121001104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171895 (or 171889 counting only the distinct ones).

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

Adding to 2220121001104 its reverse (4011001210222), we get a palindrome (6231122211326).

The spelling of 2220121001104 in words is "two trillion, two hundred twenty billion, one hundred twenty-one million, one thousand, one hundred four".