2151212002545 has 16 divisors (see below), whose sum is σ = 3441957469632. Its totient is φ = 1147306979520.

The previous prime is 2151212002531. The next prime is 2151212002549. The reversal of 2151212002545 is 5452002121512.

It is not a de Polignac number, because 2151212002545 - 2¹³ = 2151211994353 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2151212002549) 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, 4939735 + ... + 5357555.

It is an arithmetic number, because the mean of its divisors is an integer number (215122341852).

Almost surely, 2^{2151212002545} is an apocalyptic number.

It is an amenable number.

2151212002545 is a deficient number, since it is larger than the sum of its proper divisors (1290745467087).

2151212002545 is a wasteful number, since it uses less digits than its factorization.

2151212002545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 761072.

The product of its (nonzero) digits is 8000, while the sum is 30.

The spelling of 2151212002545 in words is "two trillion, one hundred fifty-one billion, two hundred twelve million, two thousand, five hundred forty-five".