121101000011010 has 160 divisors (see below), whose sum is σ = 330317398033920. Its totient is φ = 31829065281792.

The previous prime is 121101000010973. The next prime is 121101000011027. The reversal of 121101000011010 is 10110000101121.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 121101000010983 and 121101000011001.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 84376449 + ... + 85799691.

It is an arithmetic number, because the mean of its divisors is an integer number (2064483737712).

Almost surely, 2^{121101000011010} is an apocalyptic number.

121101000011010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 121101000011010, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (165158699016960).

121101000011010 is an abundant number, since it is smaller than the sum of its proper divisors (209216398022910).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

121101000011010 is a wasteful number, since it uses less digits than its factorization.

121101000011010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1424774 (or 1424765 counting only the distinct ones).

The product of its (nonzero) digits is 2, while the sum is 9.

Adding to 121101000011010 its reverse (10110000101121), we get a palindrome (131211000112131).

The spelling of 121101000011010 in words is "one hundred twenty-one trillion, one hundred one billion, eleven thousand, ten".