2101220003232 has 72 divisors (see below), whose sum is σ = 6828965017056. Its totient is φ = 600348571776.

The previous prime is 2101220003231. The next prime is 2101220003257. The reversal of 2101220003232 is 2323000221012.

2101220003232 is a `hidden beast` number, since 210 + 1 + 220 + 0 + 0 + 3 + 232 = 666.

It is a tau number, because it is divible by the number of its divisors (72).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (2101220003231) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 521133898 + ... + 521137929.

It is an arithmetic number, because the mean of its divisors is an integer number (94846736348).

Almost surely, 2^{2101220003232} is an apocalyptic number.

It is an amenable number.

2101220003232 is an abundant number, since it is smaller than the sum of its proper divisors (4727745013824).

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

2101220003232 is a wasteful number, since it uses less digits than its factorization.

2101220003232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1042271850 (or 1042271839 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 2101220003232 its reverse (2323000221012), we get a palindrome (4424220224244).

The spelling of 2101220003232 in words is "two trillion, one hundred one billion, two hundred twenty million, three thousand, two hundred thirty-two".