20122401402 has 32 divisors (see below), whose sum is σ = 47069947200. Its totient is φ = 6354442224.

The previous prime is 20122401367. The next prime is 20122401433. The reversal of 20122401402 is 20410422102.

20122401402 is a `hidden beast` number, since 20 + 1 + 2 + 240 + 1 + 402 = 666.

It is a super-2 number, since 2×20122401402² (a number of 21 digits) contains 22 as substring.

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

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9805213 + ... + 9807264.

It is an arithmetic number, because the mean of its divisors is an integer number (1470935850).

Almost surely, 2^20122401402 is an apocalyptic number.

20122401402 is an abundant number, since it is smaller than the sum of its proper divisors (26947545798).

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

20122401402 is a wasteful number, since it uses less digits than its factorization.

20122401402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19612507 (or 19612501 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

Adding to 20122401402 its reverse (20410422102), we get a palindrome (40532823504).

The spelling of 20122401402 in words is "twenty billion, one hundred twenty-two million, four hundred one thousand, four hundred two".