1211022020002 has 16 divisors (see below), whose sum is σ = 1821568489632. Its totient is φ = 603834810880.

The previous prime is 1211022019943. The next prime is 1211022020059. The reversal of 1211022020002 is 2000202201121.

It is a happy number.

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, 489093 + ... + 1631335.

It is an arithmetic number, because the mean of its divisors is an integer number (113848030602).

Almost surely, 2^{1211022020002} is an apocalyptic number.

1211022020002 is a deficient number, since it is larger than the sum of its proper divisors (610546469630).

1211022020002 is a wasteful number, since it uses less digits than its factorization.

1211022020002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1143713.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 1211022020002 its reverse (2000202201121), we get a palindrome (3211224221123).

The spelling of 1211022020002 in words is "one trillion, two hundred eleven billion, twenty-two million, twenty thousand, two".