121210130 has 16 divisors (see below), whose sum is σ = 218692224. Its totient is φ = 48369840.

The previous prime is 121210081. The next prime is 121210157. The reversal of 121210130 is 31012121.

It is a super-2 number, since 2×121210130² = 29383791229233800, which contains 22 as substring.

It is a Curzon number.

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, 9752 + ... + 18371.

It is an arithmetic number, because the mean of its divisors is an integer number (13668264).

Almost surely, 2^121210130 is an apocalyptic number.

121210130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121210130 is a deficient number, since it is larger than the sum of its proper divisors (97482094).

121210130 is a wasteful number, since it uses less digits than its factorization.

121210130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28561.

The product of its (nonzero) digits is 12, while the sum is 11.

The square root of 121210130 is about 11009.5472204810. The cubic root of 121210130 is about 494.8948931683.

Adding to 121210130 its reverse (31012121), we get a palindrome (152222251).

The spelling of 121210130 in words is "one hundred twenty-one million, two hundred ten thousand, one hundred thirty".