1223212132002 has 48 divisors (see below), whose sum is σ = 2969572681152. Its totient is φ = 334293996960.

The previous prime is 1223212131949. The next prime is 1223212132007. The reversal of 1223212132002 is 2002312123221.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 1223212132002.

It is not an unprimeable number, because it can be changed into a prime (1223212132007) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 90440749 + ... + 90454272.

It is an arithmetic number, because the mean of its divisors is an integer number (61866097524).

Almost surely, 2^{1223212132002} is an apocalyptic number.

1223212132002 is an abundant number, since it is smaller than the sum of its proper divisors (1746360549150).

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

1223212132002 is a wasteful number, since it uses less digits than its factorization.

1223212132002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180895063 (or 180895056 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 1223212132002 its reverse (2002312123221), we get a palindrome (3225524255223).

The spelling of 1223212132002 in words is "one trillion, two hundred twenty-three billion, two hundred twelve million, one hundred thirty-two thousand, two".