2154222124052 has 12 divisors (see below), whose sum is σ = 3779835655680. Its totient is φ = 1074269079576.

The previous prime is 2154222124049. The next prime is 2154222124079. The reversal of 2154222124052 is 2504212224512.

It is a super-2 number, since 2×2154222124052² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

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, 710493908 + ... + 710496939.

It is an arithmetic number, because the mean of its divisors is an integer number (314986304640).

Almost surely, 2^{2154222124052} is an apocalyptic number.

It is an amenable number.

2154222124052 is a deficient number, since it is larger than the sum of its proper divisors (1625613531628).

2154222124052 is a wasteful number, since it uses less digits than its factorization.

2154222124052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1420991230 (or 1420991228 counting only the distinct ones).

The product of its (nonzero) digits is 25600, while the sum is 32.

Adding to 2154222124052 its reverse (2504212224512), we get a palindrome (4658434348564).

The spelling of 2154222124052 in words is "two trillion, one hundred fifty-four billion, two hundred twenty-two million, one hundred twenty-four thousand, fifty-two".