32001011221020 has 48 divisors (see below), whose sum is σ = 89604047600928. Its totient is φ = 8533487165440.

The previous prime is 32001011221013. The next prime is 32001011221021. The reversal of 32001011221020 is 2012211010023.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32001011221021) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 884092 + ... + 8048828.

It is an arithmetic number, because the mean of its divisors is an integer number (1866750991686).

Almost surely, 2^{32001011221020} is an apocalyptic number.

32001011221020 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

32001011221020 is an abundant number, since it is smaller than the sum of its proper divisors (57603036379908).

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

32001011221020 is a wasteful number, since it uses less digits than its factorization.

32001011221020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7239190 (or 7239188 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 32001011221020 its reverse (2012211010023), we get a palindrome (34013222231043).

The spelling of 32001011221020 in words is "thirty-two trillion, one billion, eleven million, two hundred twenty-one thousand, twenty".