121122021130 has 16 divisors (see below), whose sum is σ = 237839605344. Its totient is φ = 44044371280.

The previous prime is 121122021091. The next prime is 121122021191. The reversal of 121122021130 is 31120221121.

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, 550554532 + ... + 550554751.

It is an arithmetic number, because the mean of its divisors is an integer number (14864975334).

Almost surely, 2^121122021130 is an apocalyptic number.

121122021130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121122021130 is a deficient number, since it is larger than the sum of its proper divisors (116717584214).

121122021130 is a wasteful number, since it uses less digits than its factorization.

121122021130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1101109301.

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 121122021130 its reverse (31120221121), we get a palindrome (152242242251).

Subtracting from 121122021130 its reverse (31120221121), we obtain a square (90001800009 = 300003²).

The spelling of 121122021130 in words is "one hundred twenty-one billion, one hundred twenty-two million, twenty-one thousand, one hundred thirty".