121211201034 has 128 divisors (see below), whose sum is σ = 335948083200. Its totient is φ = 31471727040.

The previous prime is 121211201017. The next prime is 121211201053. The reversal of 121211201034 is 430102112121.

It is a super-2 number, since 2×121211201034² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 121211200998 and 121211201016.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 20649852 + ... + 20655720.

It is an arithmetic number, because the mean of its divisors is an integer number (2624594400).

Almost surely, 2^121211201034 is an apocalyptic number.

121211201034 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 121211201034, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (167974041600).

121211201034 is an abundant number, since it is smaller than the sum of its proper divisors (214736882166).

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

121211201034 is a wasteful number, since it uses less digits than its factorization.

121211201034 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10865 (or 10859 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

Adding to 121211201034 its reverse (430102112121), we get a palindrome (551313313155).

The spelling of 121211201034 in words is "one hundred twenty-one billion, two hundred eleven million, two hundred one thousand, thirty-four".