1211102020002 has 16 divisors (see below), whose sum is σ = 2768233188672. Its totient is φ = 346029148560.

The previous prime is 1211102019943. The next prime is 1211102020031. The reversal of 1211102020002 is 2000202011121.

It is a self number, because there is not a number n which added to its sum of digits gives 1211102020002.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14417881149 + ... + 14417881232.

It is an arithmetic number, because the mean of its divisors is an integer number (173014574292).

Almost surely, 2^{1211102020002} is an apocalyptic number.

1211102020002 is an abundant number, since it is smaller than the sum of its proper divisors (1557131168670).

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

1211102020002 is a wasteful number, since it uses less digits than its factorization.

1211102020002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28835762393.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 1211102020002 its reverse (2000202011121), we get a palindrome (3211304031123).

The spelling of 1211102020002 in words is "one trillion, two hundred eleven billion, one hundred two million, twenty thousand, two".