121001213110 has 16 divisors (see below), whose sum is σ = 217960840656. Its totient is φ = 48365228128.

The previous prime is 121001213041. The next prime is 121001213111. The reversal of 121001213110 is 11312100121.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121001213111) 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, 4392724 + ... + 4420183.

It is an arithmetic number, because the mean of its divisors is an integer number (13622552541).

Almost surely, 2^121001213110 is an apocalyptic number.

121001213110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121001213110 is a deficient number, since it is larger than the sum of its proper divisors (96959627546).

121001213110 is a wasteful number, since it uses less digits than its factorization.

121001213110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8814287.

The product of its (nonzero) digits is 12, while the sum is 13.

Adding to 121001213110 its reverse (11312100121), we get a palindrome (132313313231).

The spelling of 121001213110 in words is "one hundred twenty-one billion, one million, two hundred thirteen thousand, one hundred ten".