20122402042 has 8 divisors (see below), whose sum is σ = 30190729536. Its totient is φ = 10058825532.

The previous prime is 20122402021. The next prime is 20122402063. The reversal of 20122402042 is 24020422102.

It is an interprime number because it is at equal distance from previous prime (20122402021) and next prime (20122402063).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×20122402042² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1177138 + ... + 1194109.

It is an arithmetic number, because the mean of its divisors is an integer number (3773841192).

Almost surely, 2^20122402042 is an apocalyptic number.

20122402042 is a deficient number, since it is larger than the sum of its proper divisors (10068327494).

20122402042 is a wasteful number, since it uses less digits than its factorization.

20122402042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2375492.

The product of its (nonzero) digits is 512, while the sum is 19.

Adding to 20122402042 its reverse (24020422102), we get a palindrome (44142824144).

The spelling of 20122402042 in words is "twenty billion, one hundred twenty-two million, four hundred two thousand, forty-two".