2220121010 has 32 divisors (see below), whose sum is σ = 4059072000. Its totient is φ = 874121920.

The previous prime is 2220120997. The next prime is 2220121039. The reversal of 2220121010 is 101210222.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 2220120982 and 2220121000.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 508316 + ... + 512664.

It is an arithmetic number, because the mean of its divisors is an integer number (126846000).

Almost surely, 2^2220121010 is an apocalyptic number.

2220121010 is a deficient number, since it is larger than the sum of its proper divisors (1838950990).

2220121010 is a wasteful number, since it uses less digits than its factorization.

2220121010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5146.

The product of its (nonzero) digits is 16, while the sum is 11.

The square root of 2220121010 is about 47118.1600871681. The cubic root of 2220121010 is about 1304.5444523009.

Adding to 2220121010 its reverse (101210222), we get a palindrome (2321331232).

The spelling of 2220121010 in words is "two billion, two hundred twenty million, one hundred twenty-one thousand, ten".