1210021112034 has 128 divisors (see below), whose sum is σ = 3252685363200. Its totient is φ = 325714633920.

The previous prime is 1210021112033. The next prime is 1210021112077. The reversal of 1210021112034 is 4302111200121.

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 = 1210021111998 and 1210021112016.

It is not an unprimeable number, because it can be changed into a prime (1210021112033) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 834529 + ... + 1765355.

It is an arithmetic number, because the mean of its divisors is an integer number (25411604400).

Almost surely, 2^{1210021112034} is an apocalyptic number.

1210021112034 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 1210021112034, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1626342681600).

1210021112034 is an abundant number, since it is smaller than the sum of its proper divisors (2042664251166).

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

1210021112034 is a wasteful number, since it uses less digits than its factorization.

1210021112034 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 931045 (or 931039 counting only the distinct ones).

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

Adding to 1210021112034 its reverse (4302111200121), we get a palindrome (5512132312155).

The spelling of 1210021112034 in words is "one trillion, two hundred ten billion, twenty-one million, one hundred twelve thousand, thirty-four".