154211242020 has 96 divisors (see below), whose sum is σ = 471119072256. Its totient is φ = 37378684800.

The previous prime is 154211242001. The next prime is 154211242063. The reversal of 154211242020 is 20242112451.

It is a super-2 number, since 2×154211242020² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5418267 + ... + 5446653.

It is an arithmetic number, because the mean of its divisors is an integer number (4907490336).

Almost surely, 2^154211242020 is an apocalyptic number.

154211242020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

154211242020 is an abundant number, since it is smaller than the sum of its proper divisors (316907830236).

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

154211242020 is a wasteful number, since it uses less digits than its factorization.

154211242020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36641 (or 36639 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 24.

Adding to 154211242020 its reverse (20242112451), we get a palindrome (174453354471).

The spelling of 154211242020 in words is "one hundred fifty-four billion, two hundred eleven million, two hundred forty-two thousand, twenty".