10222020261 has 12 divisors (see below), whose sum is σ = 15311997792. Its totient is φ = 6814680012.

The previous prime is 10222020239. The next prime is 10222020299. The reversal of 10222020261 is 16202022201.

It is not a de Polignac number, because 10222020261 - 2⁹ = 10222019749 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10222020461) 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, 21032721 + ... + 21033206.

It is an arithmetic number, because the mean of its divisors is an integer number (1275999816).

Almost surely, 2^10222020261 is an apocalyptic number.

It is an amenable number.

10222020261 is a deficient number, since it is larger than the sum of its proper divisors (5089977531).

10222020261 is an frugal number, since it uses more digits than its factorization.

10222020261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42065942 (or 42065930 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 10222020261 its reverse (16202022201), we get a palindrome (26424042462).

The spelling of 10222020261 in words is "ten billion, two hundred twenty-two million, twenty thousand, two hundred sixty-one".