211220220100002 has 16 divisors (see below), whose sum is σ = 424285158282240. Its totient is φ = 70099287019632.

The previous prime is 211220220099997. The next prime is 211220220100039. The reversal of 211220220100002 is 200001022022112.

It is a super-2 number, since 2×211220220100002² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 76863251938 + ... + 76863254685.

It is an arithmetic number, because the mean of its divisors is an integer number (26517822392640).

Almost surely, 2^{211220220100002} is an apocalyptic number.

211220220100002 is an abundant number, since it is smaller than the sum of its proper divisors (213064938182238).

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

211220220100002 is a wasteful number, since it uses less digits than its factorization.

211220220100002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153726506857.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 211220220100002 its reverse (200001022022112), we get a palindrome (411221242122114).

The spelling of 211220220100002 in words is "two hundred eleven trillion, two hundred twenty billion, two hundred twenty million, one hundred thousand, two".