131121322202 has 32 divisors (see below), whose sum is σ = 216443308032. Its totient is φ = 59195614464.

The previous prime is 131121322147. The next prime is 131121322231. The reversal of 131121322202 is 202223121131.

It is a super-2 number, since 2×131121322202² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2141303 + ... + 2201685.

It is an arithmetic number, because the mean of its divisors is an integer number (6763853376).

Almost surely, 2^131121322202 is an apocalyptic number.

131121322202 is a deficient number, since it is larger than the sum of its proper divisors (85321985830).

131121322202 is a wasteful number, since it uses less digits than its factorization.

131121322202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62222.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 131121322202 its reverse (202223121131), we get a palindrome (333344443333).

The spelling of 131121322202 in words is "one hundred thirty-one billion, one hundred twenty-one million, three hundred twenty-two thousand, two hundred two".