22145155152020 has 12 divisors (see below), whose sum is σ = 46504825819284. Its totient is φ = 8858062060800.

The previous prime is 22145155152017. The next prime is 22145155152037. The reversal of 22145155152020 is 2025155154122.

It can be written as a sum of positive squares in 2 ways, for example, as 7251699638404 + 14893455513616 = 2692898^2 + 3859204^2 .

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, 553628878781 + ... + 553628878820.

It is an arithmetic number, because the mean of its divisors is an integer number (3875402151607).

Almost surely, 2^{22145155152020} is an apocalyptic number.

22145155152020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22145155152020 is an abundant number, since it is smaller than the sum of its proper divisors (24359670667264).

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

22145155152020 is a wasteful number, since it uses less digits than its factorization.

22145155152020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1107257757610 (or 1107257757608 counting only the distinct ones).

The product of its (nonzero) digits is 40000, while the sum is 35.

The spelling of 22145155152020 in words is "twenty-two trillion, one hundred forty-five billion, one hundred fifty-five million, one hundred fifty-two thousand, twenty".