1226942880650 has 48 divisors (see below), whose sum is σ = 2310442954776. Its totient is φ = 484721233920.

The previous prime is 1226942880599. The next prime is 1226942880671. The reversal of 1226942880650 is 560882496221.

It can be written as a sum of positive squares in 12 ways, for example, as 103997865169 + 1122945015481 = 322487^2 + 1059691^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1226942880592 and 1226942880601.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 894842 + ... + 1804058.

Almost surely, 2^{1226942880650} is an apocalyptic number.

1226942880650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1226942880650 is a deficient number, since it is larger than the sum of its proper divisors (1083500074126).

1226942880650 is a wasteful number, since it uses less digits than its factorization.

1226942880650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 909563 (or 909558 counting only the distinct ones).

The product of its (nonzero) digits is 3317760, while the sum is 53.

The spelling of 1226942880650 in words is "one trillion, two hundred twenty-six billion, nine hundred forty-two million, eight hundred eighty thousand, six hundred fifty".