121200120101210 has 32 divisors (see below), whose sum is σ = 218941909804800. Its totient is φ = 48306452613760.

The previous prime is 121200120101173. The next prime is 121200120101213. The reversal of 121200120101210 is 12101021002121.

It is a super-2 number, since 2×121200120101210² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (121200120101213) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1347011 + ... + 15627369.

It is an arithmetic number, because the mean of its divisors is an integer number (6841934681400).

Almost surely, 2^{121200120101210} is an apocalyptic number.

121200120101210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121200120101210 is a deficient number, since it is larger than the sum of its proper divisors (97741789703590).

121200120101210 is a wasteful number, since it uses less digits than its factorization.

121200120101210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14283406.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 121200120101210 its reverse (12101021002121), we get a palindrome (133301141103331).

The spelling of 121200120101210 in words is "one hundred twenty-one trillion, two hundred billion, one hundred twenty million, one hundred one thousand, two hundred ten".