21120021101202 has 64 divisors (see below), whose sum is σ = 44635870972800. Its totient is φ = 6643595427840.

The previous prime is 21120021101177. The next prime is 21120021101227. The reversal of 21120021101202 is 20210112002112.

It is an interprime number because it is at equal distance from previous prime (21120021101177) and next prime (21120021101227).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 100385574 + ... + 100595742.

It is an arithmetic number, because the mean of its divisors is an integer number (697435483950).

Almost surely, 2^{21120021101202} is an apocalyptic number.

21120021101202 is an abundant number, since it is smaller than the sum of its proper divisors (23515849871598).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21120021101202 is a wasteful number, since it uses less digits than its factorization.

21120021101202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 213611.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 21120021101202 its reverse (20210112002112), we get a palindrome (41330133103314).

The spelling of 21120021101202 in words is "twenty-one trillion, one hundred twenty billion, twenty-one million, one hundred one thousand, two hundred two".