21022012112002 has 32 divisors (see below), whose sum is σ = 34916714680320. Its totient is φ = 9411862355280.

The previous prime is 21022012111987. The next prime is 21022012112027. The reversal of 21022012112002 is 20021121022012.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13530103 + ... + 15003589.

It is an arithmetic number, because the mean of its divisors is an integer number (1091147333760).

Almost surely, 2^{21022012112002} is an apocalyptic number.

21022012112002 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

21022012112002 is a deficient number, since it is larger than the sum of its proper divisors (13894702568318).

21022012112002 is a wasteful number, since it uses less digits than its factorization.

21022012112002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1483246.

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

Adding to 21022012112002 its reverse (20021121022012), we get a palindrome (41043133134014).

The spelling of 21022012112002 in words is "twenty-one trillion, twenty-two billion, twelve million, one hundred twelve thousand, two".