212120022101020 has 48 divisors (see below), whose sum is σ = 488857553468928. Its totient is φ = 76672669924160.

The previous prime is 212120022101017. The next prime is 212120022101081. The reversal of 212120022101020 is 20101220021212.

It is a happy number.

It is a super-2 number, since 2×212120022101020² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 212120022100985 and 212120022101003.

It is a congruent number.

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, 2886735472 + ... + 2886808951.

It is an arithmetic number, because the mean of its divisors is an integer number (10184532363936).

Almost surely, 2^{212120022101020} is an apocalyptic number.

212120022101020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212120022101020 is an abundant number, since it is smaller than the sum of its proper divisors (276737531367908).

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

212120022101020 is a wasteful number, since it uses less digits than its factorization.

212120022101020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5773544610 (or 5773544608 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 212120022101020 its reverse (20101220021212), we get a palindrome (232221242122232).

The spelling of 212120022101020 in words is "two hundred twelve trillion, one hundred twenty billion, twenty-two million, one hundred one thousand, twenty".