1215012022203 has 32 divisors (see below), whose sum is σ = 1933517491200. Its totient is φ = 663565262976.

The previous prime is 1215012022199. The next prime is 1215012022243. The reversal of 1215012022203 is 3022202105121.

It is not a de Polignac number, because 1215012022203 - 2² = 1215012022199 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 1215012022203.

It is not an unprimeable number, because it can be changed into a prime (1215012022243) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 429808 + ... + 1617021.

It is an arithmetic number, because the mean of its divisors is an integer number (60422421600).

Almost surely, 2^{1215012022203} is an apocalyptic number.

1215012022203 is a deficient number, since it is larger than the sum of its proper divisors (718505468997).

1215012022203 is a wasteful number, since it uses less digits than its factorization.

1215012022203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2048091.

The product of its (nonzero) digits is 480, while the sum is 21.

Adding to 1215012022203 its reverse (3022202105121), we get a palindrome (4237214127324).

The spelling of 1215012022203 in words is "one trillion, two hundred fifteen billion, twelve million, twenty-two thousand, two hundred three".