21101011220002 has 16 divisors (see below), whose sum is σ = 36173288067840. Its totient is φ = 9043259028768.

The previous prime is 21101011219927. The next prime is 21101011220041. The reversal of 21101011220002 is 20002211010112.

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, 1795774 + ... + 6739942.

It is an arithmetic number, because the mean of its divisors is an integer number (2260830504240).

Almost surely, 2^{21101011220002} is an apocalyptic number.

21101011220002 is a deficient number, since it is larger than the sum of its proper divisors (15072276847838).

21101011220002 is a wasteful number, since it uses less digits than its factorization.

21101011220002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5249025.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 21101011220002 its reverse (20002211010112), we get a palindrome (41103222230114).

It can be divided in two parts, 211010112 and 20002, that multiplied together give a palindrome (4220624260224).

The spelling of 21101011220002 in words is "twenty-one trillion, one hundred one billion, eleven million, two hundred twenty thousand, two".