20420122102402 has 16 divisors (see below), whose sum is σ = 33710450972832. Its totient is φ = 9199733206720.

The previous prime is 20420122102351. The next prime is 20420122102439.

20420122102402 is nontrivially palindromic in base 10.

It is a super-4 number, since 4×20420122102402⁴ (a number of 54 digits) contains 4444 as substring.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4107021268 + ... + 4107026239.

It is an arithmetic number, because the mean of its divisors is an integer number (2106903185802).

Almost surely, 2^{20420122102402} is an apocalyptic number.

20420122102402 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

20420122102402 is a deficient number, since it is larger than the sum of its proper divisors (13290328870430).

20420122102402 is a wasteful number, since it uses less digits than its factorization.

20420122102402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8214047633.

The product of its (nonzero) digits is 1024, while the sum is 22.

It can be divided in two parts, 2042012 and 2102402, that added together give a palindrome (4144414).

The spelling of 20420122102402 in words is "twenty trillion, four hundred twenty billion, one hundred twenty-two million, one hundred two thousand, four hundred two".