20101220332 has 24 divisors (see below), whose sum is σ = 35526790656. Its totient is φ = 9951093888.

The previous prime is 20101220327. The next prime is 20101220371. The reversal of 20101220332 is 23302210102.

It is a super-2 number, since 2×20101220332² (a number of 21 digits) contains 22 as substring.

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, 161998 + ... + 257770.

It is an arithmetic number, because the mean of its divisors is an integer number (1480282944).

Almost surely, 2^20101220332 is an apocalyptic number.

It is an amenable number.

20101220332 is a deficient number, since it is larger than the sum of its proper divisors (15425570324).

20101220332 is a wasteful number, since it uses less digits than its factorization.

20101220332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96297 (or 96295 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 20101220332 its reverse (23302210102), we get a palindrome (43403430434).

The spelling of 20101220332 in words is "twenty billion, one hundred one million, two hundred twenty thousand, three hundred thirty-two".