1220210120158 has 16 divisors (see below), whose sum is σ = 1831109439456. Its totient is φ = 609840373600.

The previous prime is 1220210120093. The next prime is 1220210120159. The reversal of 1220210120158 is 8510210120221.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1220210120159) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53270508 + ... + 53293408.

It is an arithmetic number, because the mean of its divisors is an integer number (114444339966).

Almost surely, 2^{1220210120158} is an apocalyptic number.

1220210120158 is a deficient number, since it is larger than the sum of its proper divisors (610899319298).

1220210120158 is a wasteful number, since it uses less digits than its factorization.

1220210120158 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33299.

The product of its (nonzero) digits is 640, while the sum is 25.

Adding to 1220210120158 its reverse (8510210120221), we get a palindrome (9730420240379).

The spelling of 1220210120158 in words is "one trillion, two hundred twenty billion, two hundred ten million, one hundred twenty thousand, one hundred fifty-eight".