12122021002 has 16 divisors (see below), whose sum is σ = 22379116032. Its totient is φ = 4795524720.

The previous prime is 12122020961. The next prime is 12122021017. The reversal of 12122021002 is 20012022121.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (13).

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, 33302074 + ... + 33302437.

It is an arithmetic number, because the mean of its divisors is an integer number (1398694752).

Almost surely, 2^12122021002 is an apocalyptic number.

12122021002 is a deficient number, since it is larger than the sum of its proper divisors (10257095030).

12122021002 is a wasteful number, since it uses less digits than its factorization.

12122021002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66604533.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 12122021002 its reverse (20012022121), we get a palindrome (32134043123).

The spelling of 12122021002 in words is "twelve billion, one hundred twenty-two million, twenty-one thousand, two".