21122010020002 has 8 divisors (see below), whose sum is σ = 31762821114396. Its totient is φ = 10534402981872.

The previous prime is 21122010019961. The next prime is 21122010020071. The reversal of 21122010020002 is 20002001022112.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 19598762848401 + 1523247171601 = 4427049^2 + 1234199^2 .

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

It is a super-2 number, since 2×21122010020002² (a number of 27 digits) contains 22 as substring.

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, 13301013073 + ... + 13301014660.

Almost surely, 2^{21122010020002} is an apocalyptic number.

21122010020002 is a deficient number, since it is larger than the sum of its proper divisors (10640811094394).

21122010020002 is a wasteful number, since it uses less digits than its factorization.

21122010020002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26602028132.

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

Adding to 21122010020002 its reverse (20002001022112), we get a palindrome (41124011042114).

The spelling of 21122010020002 in words is "twenty-one trillion, one hundred twenty-two billion, ten million, twenty thousand, two".