1220200124351 has 36 divisors (see below), whose sum is σ = 1404567248112. Its totient is φ = 1059334907904.

The previous prime is 1220200124333. The next prime is 1220200124399. The reversal of 1220200124351 is 1534210020221.

It is not a de Polignac number, because 1220200124351 - 2¹⁸ = 1220199862207 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1220200124051) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 75842030 + ... + 75858116.

It is an arithmetic number, because the mean of its divisors is an integer number (39015756892).

Almost surely, 2^{1220200124351} is an apocalyptic number.

1220200124351 is a deficient number, since it is larger than the sum of its proper divisors (184367123761).

1220200124351 is a wasteful number, since it uses less digits than its factorization.

1220200124351 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17700 (or 17670 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 23.

Adding to 1220200124351 its reverse (1534210020221), we get a palindrome (2754410144572).

The spelling of 1220200124351 in words is "one trillion, two hundred twenty billion, two hundred million, one hundred twenty-four thousand, three hundred fifty-one".