900220021102122 has 64 divisors (see below), whose sum is σ = 2202653804774400. Its totient is φ = 239538601244160.

The previous prime is 900220021102121. The next prime is 900220021102159. The reversal of 900220021102122 is 221201120022009.

It is a junction number, because it is equal to n+sod(n) for n = 900220021102092 and 900220021102101.

It is not an unprimeable number, because it can be changed into a prime (900220021102121) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9560082279 + ... + 9560176442.

It is an arithmetic number, because the mean of its divisors is an integer number (34416465699600).

Almost surely, 2^{900220021102122} is an apocalyptic number.

900220021102122 is an abundant number, since it is smaller than the sum of its proper divisors (1302433783672278).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

900220021102122 is a wasteful number, since it uses less digits than its factorization.

900220021102122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19120258811.

The product of its (nonzero) digits is 576, while the sum is 24.

The spelling of 900220021102122 in words is "nine hundred trillion, two hundred twenty billion, twenty-one million, one hundred two thousand, one hundred twenty-two".