1202211011121 has 32 divisors (see below), whose sum is σ = 1636682319360. Its totient is φ = 784806422400.

The previous prime is 1202211011069. The next prime is 1202211011251. The reversal of 1202211011121 is 1211101122021.

It is a happy number.

It is not a de Polignac number, because 1202211011121 - 2²² = 1202206816817 is a prime.

It is a super-2 number, since 2×1202211011121² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1202211011121.

It is not an unprimeable number, because it can be changed into a prime (1202211016121) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 17138706 + ... + 17208708.

It is an arithmetic number, because the mean of its divisors is an integer number (51146322480).

Almost surely, 2^{1202211011121} is an apocalyptic number.

It is an amenable number.

1202211011121 is a deficient number, since it is larger than the sum of its proper divisors (434471308239).

1202211011121 is a wasteful number, since it uses less digits than its factorization.

1202211011121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70717.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 1202211011121 its reverse (1211101122021), we get a palindrome (2413312133142).

The spelling of 1202211011121 in words is "one trillion, two hundred two billion, two hundred eleven million, eleven thousand, one hundred twenty-one".