1211013121002 has 32 divisors (see below), whose sum is σ = 2508073044480. Its totient is φ = 389358002880.

The previous prime is 1211013120943. The next prime is 1211013121013. The reversal of 1211013121002 is 2001213101121.

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, 3339093 + ... + 3683960.

It is an arithmetic number, because the mean of its divisors is an integer number (78377282640).

Almost surely, 2^{1211013121002} is an apocalyptic number.

1211013121002 is an abundant number, since it is smaller than the sum of its proper divisors (1297059923478).

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

1211013121002 is a wasteful number, since it uses less digits than its factorization.

1211013121002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7024078.

The product of its (nonzero) digits is 24, while the sum is 15.

Adding to 1211013121002 its reverse (2001213101121), we get a palindrome (3212226222123).

The spelling of 1211013121002 in words is "one trillion, two hundred eleven billion, thirteen million, one hundred twenty-one thousand, two".