22102101002 has 4 divisors (see below), whose sum is σ = 33153151506. Its totient is φ = 11051050500.

The previous prime is 22102100971. The next prime is 22102101029. The reversal of 22102101002 is 20010120122.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 20010120122 = 2 ⋅10005060061.

It can be written as a sum of positive squares in only one way, i.e., 17966453521 + 4135647481 = 134039^2 + 64309^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5525525249 + ... + 5525525252.

Almost surely, 2^22102101002 is an apocalyptic number.

22102101002 is a deficient number, since it is larger than the sum of its proper divisors (11051050504).

22102101002 is a wasteful number, since it uses less digits than its factorization.

22102101002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11051050503.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 22102101002 its reverse (20010120122), we get a palindrome (42112221124).

The spelling of 22102101002 in words is "twenty-two billion, one hundred two million, one hundred one thousand, two".