1213250223051 has 12 divisors (see below), whose sum is σ = 1789759194912. Its totient is φ = 791624258736.

The previous prime is 1213250223013. The next prime is 1213250223067. The reversal of 1213250223051 is 1503220523121.

1213250223051 is a `hidden beast` number, since 1 + 2 + 132 + 502 + 23 + 0 + 5 + 1 = 666.

It is not a de Polignac number, because 1213250223051 - 2⁷ = 1213250222923 is a prime.

It is a super-2 number, since 2×1213250223051² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1213250223001) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1434101496 + ... + 1434102341.

It is an arithmetic number, because the mean of its divisors is an integer number (149146599576).

Almost surely, 2^{1213250223051} is an apocalyptic number.

1213250223051 is a deficient number, since it is larger than the sum of its proper divisors (576508971861).

1213250223051 is a wasteful number, since it uses less digits than its factorization.

1213250223051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2868203890 (or 2868203887 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

Adding to 1213250223051 its reverse (1503220523121), we get a palindrome (2716470746172).

The spelling of 1213250223051 in words is "one trillion, two hundred thirteen billion, two hundred fifty million, two hundred twenty-three thousand, fifty-one".