2220212121002 has 16 divisors (see below), whose sum is σ = 3413819831040. Its totient is φ = 1082447785968.

The previous prime is 2220212120993. The next prime is 2220212121007. The reversal of 2220212121002 is 2001212120222.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (2220212121007) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43876718 + ... + 43927289.

It is an arithmetic number, because the mean of its divisors is an integer number (213363739440).

Almost surely, 2^{2220212121002} is an apocalyptic number.

2220212121002 is a deficient number, since it is larger than the sum of its proper divisors (1193607710038).

2220212121002 is a wasteful number, since it uses less digits than its factorization.

2220212121002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87804325.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 2220212121002 its reverse (2001212120222), we get a palindrome (4221424241224).

The spelling of 2220212121002 in words is "two trillion, two hundred twenty billion, two hundred twelve million, one hundred twenty-one thousand, two".