1220402021050 has 24 divisors (see below), whose sum is σ = 2322737246016. Its totient is φ = 476808230640.

The previous prime is 1220402020997. The next prime is 1220402021057. The reversal of 1220402021050 is 501202040221.

It is not an unprimeable number, because it can be changed into a prime (1220402021057) 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, 283812274 + ... + 283816573.

It is an arithmetic number, because the mean of its divisors is an integer number (96780718584).

Almost surely, 2^{1220402021050} is an apocalyptic number.

1220402021050 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1220402021050 is a deficient number, since it is larger than the sum of its proper divisors (1102335224966).

1220402021050 is a wasteful number, since it uses less digits than its factorization.

1220402021050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 567628902 (or 567628897 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 19.

Adding to 1220402021050 its reverse (501202040221), we get a palindrome (1721604061271).

The spelling of 1220402021050 in words is "one trillion, two hundred twenty billion, four hundred two million, twenty-one thousand, fifty".