21120221101202 has 8 divisors (see below), whose sum is σ = 31782197670912. Its totient is φ = 10526155210900.

The previous prime is 21120221101183. The next prime is 21120221101237. The reversal of 21120221101202 is 20210112202112.

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

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, 16977669074 + ... + 16977670317.

It is an arithmetic number, because the mean of its divisors is an integer number (3972774708864).

Almost surely, 2^{21120221101202} is an apocalyptic number.

21120221101202 is a deficient number, since it is larger than the sum of its proper divisors (10661976569710).

21120221101202 is a wasteful number, since it uses less digits than its factorization.

21120221101202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33955339704.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 21120221101202 its reverse (20210112202112), we get a palindrome (41330333303314).

The spelling of 21120221101202 in words is "twenty-one trillion, one hundred twenty billion, two hundred twenty-one million, one hundred one thousand, two hundred two".