120100100121258 has 16 divisors (see below), whose sum is σ = 248482965768480. Its totient is φ = 38652905786096.

The previous prime is 120100100121257. The next prime is 120100100121341. The reversal of 120100100121258 is 852121001001021.

It is not an unprimeable number, because it can be changed into a prime (120100100121257) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 345115230060 + ... + 345115230407.

It is an arithmetic number, because the mean of its divisors is an integer number (15530185360530).

Almost surely, 2^{120100100121258} is an apocalyptic number.

120100100121258 is an abundant number, since it is smaller than the sum of its proper divisors (128382865647222).

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

120100100121258 is a wasteful number, since it uses less digits than its factorization.

120100100121258 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 690230460501.

The product of its (nonzero) digits is 320, while the sum is 24.

Adding to 120100100121258 its reverse (852121001001021), we get a palindrome (972221101122279).

The spelling of 120100100121258 in words is "one hundred twenty trillion, one hundred billion, one hundred million, one hundred twenty-one thousand, two hundred fifty-eight".