1012021220132 has 12 divisors (see below), whose sum is σ = 1907270761116. Its totient is φ = 467086716960.

The previous prime is 1012021220131. The next prime is 1012021220173. The reversal of 1012021220132 is 2310221202101.

It can be written as a sum of positive squares in 2 ways, for example, as 169895649856 + 842125570276 = 412184^2 + 917674^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1012021220132.

It is not an unprimeable number, because it can be changed into a prime (1012021220131) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9730973219 + ... + 9730973322.

It is an arithmetic number, because the mean of its divisors is an integer number (158939230093).

Almost surely, 2^{1012021220132} is an apocalyptic number.

It is an amenable number.

1012021220132 is a deficient number, since it is larger than the sum of its proper divisors (895249540984).

1012021220132 is a wasteful number, since it uses less digits than its factorization.

1012021220132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19461946558 (or 19461946556 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 1012021220132 its reverse (2310221202101), we get a palindrome (3322242422233).

The spelling of 1012021220132 in words is "one trillion, twelve billion, twenty-one million, two hundred twenty thousand, one hundred thirty-two".