21122001021002 has 8 divisors (see below), whose sum is σ = 36209144607456. Its totient is φ = 9052286151852.

The previous prime is 21122001020957. The next prime is 21122001021019. The reversal of 21122001021002 is 20012010022112.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×21122001021002² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (14), and also a Moran number because the ratio is a prime number: 1508714358643 = 21122001021002 / (2 + 1 + 1 + 2 + 2 + 0 + 0 + 1 + 0 + 2 + 1 + 0 + 0 + 2).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 754357179308 + ... + 754357179335.

It is an arithmetic number, because the mean of its divisors is an integer number (4526143075932).

Almost surely, 2^{21122001021002} is an apocalyptic number.

21122001021002 is a deficient number, since it is larger than the sum of its proper divisors (15087143586454).

21122001021002 is a wasteful number, since it uses less digits than its factorization.

21122001021002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1508714358652.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 21122001021002 its reverse (20012010022112), we get a palindrome (41134011043114).

The spelling of 21122001021002 in words is "twenty-one trillion, one hundred twenty-two billion, one million, twenty-one thousand, two".