121120220111210 has 64 divisors (see below), whose sum is σ = 220378716455040. Its totient is φ = 47925606493440.

The previous prime is 121120220111147. The next prime is 121120220111213. The reversal of 121120220111210 is 12111022021121.

It is not an unprimeable number, because it can be changed into a prime (121120220111213) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1003097021 + ... + 1003217759.

It is an arithmetic number, because the mean of its divisors is an integer number (3443417444610).

Almost surely, 2^{121120220111210} is an apocalyptic number.

121120220111210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121120220111210 is a deficient number, since it is larger than the sum of its proper divisors (99258496343830).

121120220111210 is a wasteful number, since it uses less digits than its factorization.

121120220111210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123303.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 121120220111210 its reverse (12111022021121), we get a palindrome (133231242132331).

The spelling of 121120220111210 in words is "one hundred twenty-one trillion, one hundred twenty billion, two hundred twenty million, one hundred eleven thousand, two hundred ten".