1220510122402 has 4 divisors (see below), whose sum is σ = 1830765183606. Its totient is φ = 610255061200.

The previous prime is 1220510122367. The next prime is 1220510122427. The reversal of 1220510122402 is 2042210150221.

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

It can be written as a sum of positive squares in only one way, i.e., 1055055611281 + 165454511121 = 1027159^2 + 406761^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 305127530599 + ... + 305127530602.

Almost surely, 2^{1220510122402} is an apocalyptic number.

1220510122402 is a deficient number, since it is larger than the sum of its proper divisors (610255061204).

1220510122402 is an equidigital number, since it uses as much as digits as its factorization.

1220510122402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 610255061203.

The product of its (nonzero) digits is 640, while the sum is 22.

Adding to 1220510122402 its reverse (2042210150221), we get a palindrome (3262720272623).

The spelling of 1220510122402 in words is "one trillion, two hundred twenty billion, five hundred ten million, one hundred twenty-two thousand, four hundred two".