2131545202222 has 4 divisors (see below), whose sum is σ = 3197317803336. Its totient is φ = 1065772601110.

The previous prime is 2131545202133. The next prime is 2131545202223. The reversal of 2131545202222 is 2222025451312.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2131545202223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 532886300554 + ... + 532886300557.

It is an arithmetic number, because the mean of its divisors is an integer number (799329450834).

Almost surely, 2^{2131545202222} is an apocalyptic number.

2131545202222 is a deficient number, since it is larger than the sum of its proper divisors (1065772601114).

2131545202222 is a wasteful number, since it uses less digits than its factorization.

2131545202222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1065772601113.

The product of its (nonzero) digits is 19200, while the sum is 31.

The spelling of 2131545202222 in words is "two trillion, one hundred thirty-one billion, five hundred forty-five million, two hundred two thousand, two hundred twenty-two".