1222121020002 has 32 divisors (see below), whose sum is σ = 2536656670080. Its totient is φ = 392061573120.

The previous prime is 1222121019989. The next prime is 1222121020007. The reversal of 1222121020002 is 2000201212221.

It is not an unprimeable number, because it can be changed into a prime (1222121020007) 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, 11237983 + ... + 11346210.

It is an arithmetic number, because the mean of its divisors is an integer number (79270520940).

Almost surely, 2^{1222121020002} is an apocalyptic number.

1222121020002 is an abundant number, since it is smaller than the sum of its proper divisors (1314535650078).

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

1222121020002 is a wasteful number, since it uses less digits than its factorization.

1222121020002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22584538.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 1222121020002 its reverse (2000201212221), we get a palindrome (3222322232223).

The spelling of 1222121020002 in words is "one trillion, two hundred twenty-two billion, one hundred twenty-one million, twenty thousand, two".