221012111001332 has 48 divisors (see below), whose sum is σ = 461539954834560. Its totient is φ = 90598583655552.

The previous prime is 221012111001271. The next prime is 221012111001379. The reversal of 221012111001332 is 233100111210122.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1271793503 + ... + 1271967270.

It is an arithmetic number, because the mean of its divisors is an integer number (9615415725720).

Almost surely, 2^{221012111001332} is an apocalyptic number.

It is an amenable number.

221012111001332 is an abundant number, since it is smaller than the sum of its proper divisors (240527843833228).

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

221012111001332 is a wasteful number, since it uses less digits than its factorization.

221012111001332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2543760920 (or 2543760918 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 20.

Adding to 221012111001332 its reverse (233100111210122), we get a palindrome (454112222211454).

The spelling of 221012111001332 in words is "two hundred twenty-one trillion, twelve billion, one hundred eleven million, one thousand, three hundred thirty-two".