1021220220022 has 8 divisors (see below), whose sum is σ = 1532641257000. Its totient is φ = 510339801024.

The previous prime is 1021220219983. The next prime is 1021220220037. The reversal of 1021220220022 is 2200220221201.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 1021220219978 and 1021220220005.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 135149772 + ... + 135157327.

It is an arithmetic number, because the mean of its divisors is an integer number (191580157125).

Almost surely, 2^{1021220220022} is an apocalyptic number.

1021220220022 is a deficient number, since it is larger than the sum of its proper divisors (511421036978).

1021220220022 is a wasteful number, since it uses less digits than its factorization.

1021220220022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 270308990.

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 1021220220022 its reverse (2200220221201), we get a palindrome (3221440441223).

The spelling of 1021220220022 in words is "one trillion, twenty-one billion, two hundred twenty million, two hundred twenty thousand, twenty-two".