20420222240004 has 48 divisors (see below), whose sum is σ = 48015444508416. Its totient is φ = 6754142106400.

The previous prime is 20420222239961. The next prime is 20420222240009. The reversal of 20420222240004 is 40004222202402.

It is not an unprimeable number, because it can be changed into a prime (20420222240009) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16159639 + ... + 17377409.

It is an arithmetic number, because the mean of its divisors is an integer number (1000321760592).

Almost surely, 2^{20420222240004} is an apocalyptic number.

It is an amenable number.

20420222240004 is an abundant number, since it is smaller than the sum of its proper divisors (27595222268412).

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

20420222240004 is a wasteful number, since it uses less digits than its factorization.

20420222240004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1228576 (or 1228574 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 24.

Adding to 20420222240004 its reverse (40004222202402), we get a palindrome (60424444442406).

The spelling of 20420222240004 in words is "twenty trillion, four hundred twenty billion, two hundred twenty-two million, two hundred forty thousand, four".