20010100210 has 16 divisors (see below), whose sum is σ = 36020477376. Its totient is φ = 8003529648.

The previous prime is 20010100199. The next prime is 20010100237. The reversal of 20010100210 is 1200101002.

It is a super-2 number, since 2×20010100210² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20010100193 and 20010100202.

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, 128419 + ... + 237721.

It is an arithmetic number, because the mean of its divisors is an integer number (2251279836).

Almost surely, 2^20010100210 is an apocalyptic number.

20010100210 is a deficient number, since it is larger than the sum of its proper divisors (16010377166).

20010100210 is a wasteful number, since it uses less digits than its factorization.

20010100210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127617.

The product of its (nonzero) digits is 4, while the sum is 7.

Adding to 20010100210 its reverse (1200101002), we get a palindrome (21210201212).

The spelling of 20010100210 in words is "twenty billion, ten million, one hundred thousand, two hundred ten".