2021420234244 has 48 divisors (see below), whose sum is σ = 4734236521728. Its totient is φ = 671294565888.

The previous prime is 2021420234221. The next prime is 2021420234269. The reversal of 2021420234244 is 4424320241202.

It is a happy number.

It is a super-2 number, since 2×2021420234244² (a number of 25 digits) contains 22 as substring.

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, 32354524 + ... + 32416940.

It is an arithmetic number, because the mean of its divisors is an integer number (98629927536).

Almost surely, 2^{2021420234244} is an apocalyptic number.

It is an amenable number.

2021420234244 is an abundant number, since it is smaller than the sum of its proper divisors (2712816287484).

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

2021420234244 is a wasteful number, since it uses less digits than its factorization.

2021420234244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72444 (or 72442 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 30.

Adding to 2021420234244 its reverse (4424320241202), we get a palindrome (6445740475446).

The spelling of 2021420234244 in words is "two trillion, twenty-one billion, four hundred twenty million, two hundred thirty-four thousand, two hundred forty-four".