121101111222010 has 16 divisors (see below), whose sum is σ = 217982144374272. Its totient is φ = 48440412450000.

The previous prime is 121101111221953. The next prime is 121101111222011. The reversal of 121101111222010 is 10222111101121.

It is not an unprimeable number, because it can be changed into a prime (121101111222011) 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, 17234035 + ... + 23220985.

It is an arithmetic number, because the mean of its divisors is an integer number (13623884023392).

Almost surely, 2^{121101111222010} is an apocalyptic number.

121101111222010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121101111222010 is a deficient number, since it is larger than the sum of its proper divisors (96881033152262).

121101111222010 is a wasteful number, since it uses less digits than its factorization.

121101111222010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8009709.

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

Adding to 121101111222010 its reverse (10222111101121), we get a palindrome (131323222323131).

It can be divided in two parts, 121101111 and 222010, that added together give a palindrome (121323121).

The spelling of 121101111222010 in words is "one hundred twenty-one trillion, one hundred one billion, one hundred eleven million, two hundred twenty-two thousand, ten".