1121221211202 has 32 divisors (see below), whose sum is σ = 2525734244160. Its totient is φ = 368620670880.

The previous prime is 1121221211101. The next prime is 1121221211213. The reversal of 1121221211202 is 2021121221211.

1121221211202 is a `hidden beast` number, since 11 + 21 + 221 + 211 + 202 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

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, 142210824 + ... + 142218707.

It is an arithmetic number, because the mean of its divisors is an integer number (78929195130).

Almost surely, 2^{1121221211202} is an apocalyptic number.

1121221211202 is an abundant number, since it is smaller than the sum of its proper divisors (1404513032958).

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

1121221211202 is a wasteful number, since it uses less digits than its factorization.

1121221211202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 284429615 (or 284429609 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 1121221211202 its reverse (2021121221211), we get a palindrome (3142342432413).

It can be divided in two parts, 1121221211 and 202, that multiplied together give a palindrome (226486684622).

The spelling of 1121221211202 in words is "one trillion, one hundred twenty-one billion, two hundred twenty-one million, two hundred eleven thousand, two hundred two".